Steel Beam Sizes / Australia / RHS / 100×50×4.0 RHS
100×50×4.0 RHS Steel Beam Dimensions and Properties
ASNZS Rectangular hollow sections · v2019.11
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
100×50×4.0 RHS dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 5.70 lb/ft | 8.48 kg/m |
| Height | 3.94 in | 100.00 mm |
| Width | 1.97 in | 50.00 mm |
| t | 0.157 in | 4.000 mm |
| Area | 1.67 in² | 1,080.00 mm² |
| Ix | 3.15 in⁴ | 1,310,000 mm⁴ |
| Iy | 1.06 in⁴ | 441,000.00 mm⁴ |
| Sx | 1.60 in³ | 26,200.00 mm³ |
| Sy | 1.08 in³ | 17,640.00 mm³ |
| Zx | 2.04 in³ | 33,400.00 mm³ |
| Zy | 1.26 in³ | 20,600.00 mm³ |
| rx | 1.37 in | 34.83 mm |
| ry | 0.80 in | 20.21 mm |
| J | 2.71 in⁴ | 1,130,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 100×50×4.0 RHS.
Lighter in Rectangular hollow sections
125×75×2.8 RHS
- Weight
- 8.4 kg/m (-0.9%)
- Depth
- 125.0 mm (+25%)
- Ix
- 2,290,000 mm⁴ (+75%)
Heavier in Rectangular hollow sections
125×75×3.0 RHS
- Weight
- 8.9 kg/m (+5.6%)
- Depth
- 125.0 mm (+25%)
- Ix
- 2,430,000 mm⁴ (+85%)
Closest Iₓ in Rectangular hollow sections
100×50×3.5 RHS
- Weight
- 7.5 kg/m (-11%)
- Depth
- 100.0 mm (0.0%)
- Ix
- 1,180,000 mm⁴ (-9.9%)
Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology